<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>

	<body>
	</body>
	<script>
		//请假审批，需要组长审批、经理审批、最后总监审批
		class Action {
			constructor(name) {
				this.name = name
				this.nextAction = null
			}
			setNextAction(action) {
				this.nextAction = action
			}
			handle() {
				console.log(`${this.name}审批`)
				if(this.nextAction != null) {
					this.nextAction.handle()
				}
			}
		}
		let a1 = new Action('组长')
		let a2 = new Action('经理')
		let a3 = new Action('总监')
		a1.setNextAction(a2)
		a2.setNextAction(a3)
		a1.handle()
		//组长审批
		//经理审批
		//总监审批
	</script>

</html>